<template>
  <div class="upload-container">
    <el-button icon='el-icon-upload' size="mini" :style="{background:color,borderColor:color}"
               @click=" showUploadDialog" type="primary">上传图片
    </el-button>
    <el-dialog append-to-body :visible.sync="dialogVisible">
      <el-upload class="editor-slide-upload"
                 ref="upload"
                 :action="loadURL"
                 multiple
                 :headers="headers"
                 :data="dataObj"
                 list-type="picture-card"
                 :on-remove="handleRemove"
                 :on-success="handleSuccess">
        <i class="el-icon-plus"></i>
      </el-upload>
      <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="handleSubmit">确 定</el-button>
      </span>

    </el-dialog>
  </div>
</template>

<script>
  import {policy} from '@/api/oss'
  import { getToken } from '@/utils/auth'
  export default {
    name: 'editorSlideUpload',
    props: {
      color: {
        type: String,
        default: '#1890ff'
      }
    },
    data() {
      return {
        dialogVisible: false,
        listObj: {},
        fileList: [],
        dataObj: {
          policy: '',
          signature: '',
          key: '',
          ossaccessKeyId: '',
          dir: '',
          host: ''
        },
        loadURL:process.env.BASE_API + '/shop/uploadPic',
        headers:{
          Authorization:getToken()
        } ,
      }
    },
    methods: {
      checkAllSuccess() {
        return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess)
      },
      showUploadDialog(){
        this.dialogVisible = true;

      },
      handleSubmit() {
        const arr = Object.keys(this.listObj).map(v => this.listObj[v])
        if (!this.checkAllSuccess()) {
          this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！')
          return
        }
        console.log(this.fileList);
        this.$emit('successCBK', this.fileList);
        this.$refs.upload.clearFiles();
        this.listObj = {};
        this.fileList = [];
        this.dialogVisible = false;
      },
      handleSuccess(response, file,filelist) {
        this.fileList = filelist;
        // console.log("filelist",filelist);
        // const uid = file.uid;
        // const objKeyArr = Object.keys(this.listObj)
        // for (let i = 0, len = objKeyArr.length; i < len; i++) {
        //   if (this.listObj[objKeyArr[i]].uid === uid) {
        //     this.listObj[objKeyArr[i]].url = this.dataObj.host + '/' + this.dataObj.dir + '/' + file.name;
        //     this.listObj[objKeyArr[i]].hasSuccess = true;
        //     return
        //   }
        // }
        // console.log("this.listObj",this.listObj);
      },
      handleRemove(file,filelist) {
        // console.log("filelist",filelist);
        this.fileList = filelist;
        // const uid = file.uid;
        // const objKeyArr = Object.keys(this.listObj);
        // for (let i = 0, len = objKeyArr.length; i < len; i++) {
        //   if (this.listObj[objKeyArr[i]].uid === uid) {
        //     delete this.listObj[objKeyArr[i]];
        //     return
        //   }
        // }
      },
      beforeUpload(file) {
        const _self = this
        const fileName = file.uid;
        this.listObj[fileName] = {};
        return new Promise((resolve, reject) => {
          policy().then(response => {
            _self.dataObj.policy = response.data.policy;
            _self.dataObj.signature = response.data.signature;
            _self.dataObj.ossaccessKeyId = response.data.accessKeyId;
            _self.dataObj.key = response.data.dir + '/${filename}';
            _self.dataObj.dir = response.data.dir;
            _self.dataObj.host = response.data.host;
            _self.listObj[fileName] = {hasSuccess: false, uid: file.uid, width: this.width, height: this.height};
            resolve(true)
          }).catch(err => {
            console.log(err)
            reject(false)
          })
        })
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  .upload-container .editor-slide-upload{
    margin-bottom: 20px;
  }
</style>
